In illustration D035SA below, viewing the...

Question 1 of 2707066636eec28f7522a1c51c4d1

In illustration D035SA below, viewing the bridge level of your vessel's fire control plan, what do the two symbols within the machinery casing represent?

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Question 1 of 27070

In illustration D035SA below, viewing the bridge level of your vessel's fire control plan, what do the two symbols within the machinery casing represent?

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🔍 Key Concepts

• Compare how CO₂ systems and Halon systems are shown on a fire control plan (spaces protected vs. bottle rooms vs. remote pulls). • Notice the difference between symbols drawn inside a space (showing what protects that space) and symbols drawn outside in passageways or bulkheads (often remote controls or alarms). • Look for other, identical symbols elsewhere on the plan and see how their location and labels help you interpret what they mean in the machinery casing.

💭 Think About

• Do the two symbols inside the machinery casing look more like equipment you would walk up to (like pull handles or bottles), or like indications that the entire space is covered by a system? • Where on the plan are CO₂/Halon bottle rooms and remote pull stations located, and how are those symbols drawn differently from what you see inside the machinery casing? • If you trace the blue leader lines and read any nearby text (such as gas names or weights), which option best matches how those same symbols are used elsewhere on the drawing?

✅ Before You Answer

• Verify which symbols on this plan mark bottle rooms (they are usually in a small dedicated compartment with capacity/weight marked). • Verify which symbols indicate remote pull stations (they are normally on bulkheads/corridors, not centered inside a machinery space). • Confirm that symbols drawn within the machinery casing boundary are indicating the type of fixed fire protection covering that space, not the remote controls or storage location.